For each treat, tint fondant: 1 1/2 oz. black; 1/4 oz.
pink; reserve 1 oz. white. Roll out to 1/8 in. thick
as needed. Cut black heart using second
largest plastic cutter; attach with damp brush.
Mark position of white heart using third largest
plastic cutter. Use full-strength red icing to
pipe tip 1 lines, about 1/8 in. apart, over black
heart ending at marks.